Silencer exhaust structure for gardening tool

Abstract

The utility model discloses a silencer exhaust structure for a gardening tool, and relates to the technical field of gardening tools, the silencer exhaust structure comprises a pipe body and an exhaust pipe, the pipe body and the exhaust pipe are in butt joint; the fixing plate is arranged at the end, close to the exhaust pipe, in the pipe body, a through hole is integrally formed in the surface of the fixing plate, the through hole is communicated with the two sides of the fixing plate, a sound absorption frame is arranged on the side, close to the exhaust pipe, of the fixing plate, an inner cavity of the sound absorption frame is communicated with the through hole, and the sound absorption frame is arranged at the front end of the pipe body; the through grooves formed in the surface of the sound absorption frame can disperse noise generated by gas, the filter cotton arranged in the sound absorption frame can reduce the noise and filter impurities contained in the gas, the spiral baffle is arranged in the middle of the pipe body, the speed of airflow can be changed, sound waves are interfered and attenuated in the pipeline, and the noise reduction effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of garden tools, in particular to a muffler exhaust structure for garden tools. Background Art

[0002] Garden tools refer to various implements and equipment used specifically for landscaping, plant care, and landscape maintenance. These tools can be categorized into multiple categories based on their purpose, function, and power source. Among garden tools, some fuel-powered equipment, such as fuel-powered lawn mowers and generators, typically have exhaust pipes to dissipate the gases. These exhaust pipes not only produce exhaust but also generate noise.

[0003] Existing garden tools that rely on fuel as power will generate a lot of noise from their exhaust pipes when in use. Long-term exposure of workers to high-intensity noise environments may lead to hearing loss or even deafness, and make workers feel upset and unable to concentrate on their work, resulting in reduced work efficiency. Therefore, we have proposed a muffler exhaust structure for garden tools to solve the above problems. Utility Model Content

[0004] The purpose of the present utility model is to provide a muffler exhaust structure for garden tools to solve the problem raised in the above background technology that workers are exposed to high-intensity noise environments for a long time, which may lead to hearing loss or even deafness, and make workers feel upset and unable to concentrate on their work, thereby reducing work efficiency.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a muffler exhaust structure for garden tools, comprising a pipe body and an exhaust pipe, wherein the pipe body and the exhaust pipe are butt-jointed;

[0006] It is characterized by: further comprising:

[0007] A fixing plate is provided inside the tube body at one end near the exhaust pipe, a through hole is integrally formed on the surface of the fixing plate, and the through hole is connected to both sides of the fixing plate, a sound-absorbing frame is provided on one side of the fixing plate near the exhaust pipe, and the inner cavity of the sound-absorbing frame is connected to the through hole, a plurality of evenly arranged through grooves are distributed on the surface of the sound-absorbing frame, and the through grooves are connected to the inner cavity of the sound-absorbing frame, a fixing frame is provided in the inner middle layer of the tube body, and two fixing frames are provided and respectively fixed on both sides of the inner part of the tube body, a circular shaft is provided between the two fixing frames, and the circular shaft is fixed to the inner middle layer of the tube body through the two fixing frames, and a spiral baffle is distributed on the surface of the circular shaft.

[0008] Preferably, an anti-scalding cover is provided on the outside of the tube body, and the anti-scalding cover and the tube body are connected and fixed by a connecting rod, and a certain distance is left between the anti-scalding cover and the tube body by the connecting rod.

[0009] Preferably, a sound-absorbing layer is attached to the inner wall of the tube, and the sound-absorbing layer is made of ceramic fiber.

[0010] Preferably, a connecting pipe is provided at one end of the tube body close to the exhaust pipe, and the connecting pipe is connected to the exhaust pipe, and a rubber pad is provided on the inner wall of the connecting pipe by adhesion.

[0011] Preferably, a spark catching net is installed on the inner wall of the other end of the tube body.

[0012] Preferably, filter cotton is engaged in the inner cavity of the sound-absorbing frame, and the filter cotton is made of urea-formaldehyde foam plastic material.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] By setting up an independent pipe structure, a connecting pipe is set at one end of the pipe body for docking with the exhaust pipe of the garden tool, which is convenient and quick to disassemble and install. A rubber pad is set on the inner wall of the connecting pipe to reduce the resonance between the exhaust pipe and the connecting pipe. A sound-absorbing frame is set at the front end of the pipe body. Through grooves are set on the surface of the sound-absorbing frame to disperse the noise emitted by the gas. Filter cotton is set inside the sound-absorbing frame to reduce noise and filter out impurities contained in the gas. A spiral baffle is set in the middle of the pipe body to change the speed of the airflow, so that the sound waves interfere and attenuate in the pipeline, thereby achieving the effect of noise reduction. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a side sectional view of the overall structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the spiral baffle of the present utility model;

[0018] Figure 4 This is a schematic diagram of the sound-absorbing frame of the present utility model;

[0019] In the figure: 1. Tube body; 2. Anti-scalding cover; 3. Connecting rod; 4. Sound-absorbing layer; 5. Spark arrester; 6. Connecting pipe; 7. Exhaust pipe; 8. Sound-absorbing frame; 9. Filter cotton; 10. Fixing plate; 11. Through hole; 12. Through groove; 13. Spiral baffle; 14. Round shaft; 15. Fixing frame; 16. Rubber pad. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0021] The present invention provides a muffler exhaust structure for garden tools, comprising a pipe body 1 and an exhaust pipe 7, which are connected to each other. The present invention mainly solves the problem that garden tools driven by fuel power are generally provided with an exhaust pipe for exhaust, which not only produces exhaust gas but also generates noise, which can cause hearing loss and reduce work efficiency of workers.

[0022] For the device provided by this utility model, please refer to Figure 1-4 , the following is a detailed introduction.

[0023] The fixing plate 10 is arranged at one end of the inside of the pipe body 1 near the exhaust pipe 7. The surface of the fixing plate 10 is integrally formed with a through hole 11, and the through hole 11 is connected to both sides of the fixing plate 10. A sound-absorbing frame 8 is provided on one side of the fixing plate 10 near the exhaust pipe 7, and the inner cavity of the sound-absorbing frame 8 is connected to the through hole 11. A plurality of evenly arranged through grooves 12 are distributed on the surface of the sound-absorbing frame 8, and the through grooves 12 are connected to the inner cavity of the sound-absorbing frame 8. The inner cavity of the sound-absorbing frame 8 is engaged with filter cotton 9, and the filter cotton 9 is made of urea-formaldehyde foam plastic material. The through grooves 12 and the filter cotton 9 can disperse the airflow and guide the sound to harmony. The gas enters the interior of the tank body 1 from the exhaust pipe 7 and enters the sound-absorbing frame from the through grooves 12 8, through the filter cotton 9, the inner middle layer of the tube body 1 is provided with a fixing frame 15, and two fixing frames 15 are provided and fixed on both sides of the inner part of the tube body 1, a circular shaft 14 is provided between the two fixing frames 15, and the circular shaft 14 is fixed to the inner middle layer of the tube body 1 through the two fixing frames 15, and a spiral baffle 13 is distributed on the surface of the circular shaft 14, so that the sound waves interfere and attenuate in the pipeline to achieve the effect of noise reduction. The inner wall of the tube body 1 is adhered with a sound-absorbing layer 4, and the sound-absorbing layer 4 is made of ceramic fiber. A connecting pipe 6 is provided at one end of the tube body 1 close to the exhaust pipe 7, and the connecting pipe 6 is connected to the exhaust pipe 7, and the inner wall of the connecting pipe 6 is provided with a rubber pad 16 by adhesion.

[0024] Further introduction, a spark catching net 5 is installed on the inner wall of the other end of the tube body 1 to prevent sparks in the exhaust gas from flying and causing safety accidents such as fire.

[0025] For safety reasons, an anti-scalding cover 2 is provided on the outside of the tube body 1. The anti-scalding cover 2 is connected and fixed to the tube body 1 by a connecting rod 3, and a certain distance is left between the anti-scalding cover 2 and the tube body 1 through the connecting rod 3. The anti-scalding cover 2 can isolate the temperature of the surface of the tube body 1 to prevent staff from being scalded.

[0026] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A muffler exhaust structure for garden tools, comprising a pipe body (1) and an exhaust pipe (7), wherein the pipe body (1) and the exhaust pipe (7) are butt-jointed; Its characteristics are: Also includes: A fixing plate (10) is provided inside the pipe body (1) at one end close to the exhaust pipe (7); a through hole (11) is integrally formed on the surface of the fixing plate (10), and the through hole (11) is connected to both sides of the fixing plate (10); a sound absorbing frame (8) is provided on one side of the fixing plate (10) close to the exhaust pipe (7), and the inner cavity of the sound absorbing frame (8) is connected to the through hole (11); a surface of the sound absorbing frame (8) is distributed with a plurality of evenly arranged through grooves (12), and the through grooves (12) are connected to the inner cavity of the sound absorbing frame (8); a fixing frame (15) is provided in the inner middle layer of the pipe body (1), and two fixing frames (15) are provided and respectively fixed on both sides of the inner part of the pipe body (1); a circular shaft (14) is provided between the two fixing frames (15), and the circular shaft (14) is fixed to the inner middle layer of the pipe body (1) through the two fixing frames (15); a spiral baffle (13) is distributed on the surface of the circular shaft (14).

2. The muffler exhaust structure for garden tools according to claim 1, characterized in that: An anti-scalding cover (2) is provided on the outside of the tube body (1), and the anti-scalding cover (2) and the tube body (1) are connected and fixed via a connecting rod (3), and a certain distance is left between the anti-scalding cover (2) and the tube body (1) via the connecting rod (3).

3. The muffler exhaust structure for garden tools according to claim 1, characterized in that: A sound absorbing layer (4) is adhered to the inner wall of the tube body (1), and the sound absorbing layer (4) is made of ceramic fiber.

4. The muffler exhaust structure for garden tools according to claim 1, characterized in that: A connecting pipe (6) is provided at one end of the pipe body (1) close to the exhaust pipe (7), and the connecting pipe (6) is connected to the exhaust pipe (7). A rubber pad (16) is provided on the inner wall of the connecting pipe (6) by adhesion.

5. The muffler exhaust structure for garden tools according to claim 1, characterized in that: A spark catching net (5) is installed on the inner wall of the other end of the tube body (1).

6. The muffler exhaust structure for garden tools according to claim 1, characterized in that: The inner cavity of the sound-absorbing frame (8) is engaged with filter cotton (9), and the filter cotton (9) is made of urea-formaldehyde foam plastic material.

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